Ricardo, thanks for the info. I am using your suggestions now too!
But I wanted to mention that your change in the SP for line...
"AS SELECT dbo.tblComputers.Computername, dbo.tblComputers.Username,"
Needs to be...
"AS SELECT dbo.tblComputers.Computername, ISNULL(dbo.tblComputers.Username, '') AS Username,"
The portion "AS Username" is required to change the name of the result's column from "thedescription".
without this the page throws an error.
Thanks again!